Spiraali

#include <iostream>
#include <math.h>
using namespace std;
int main()
{
	long long n, t, y, x;
	cin >> n >> t;

	if (n % 2 == 1)
	{
		return 1;
	}

	for (int i = 0; i < t; i++)
	{
		cin >> y >> x;
		if (abs(n / 2 - y) >= abs(n / 2 - x))
		{
			if (y > (n / 2))
			{
				//toimii ÁLÄ KOSKE
				if (y == n - x)
				{
					cout << "1: " << 4 * (x - 1) * (n - x + 1) + (y - x + 1) << endl;
				}
				else
				{
					cout << "2: " << 4 * n * y - n - 4 * y * y + 2 * y + x - (n - y) - 1 << endl;
				}
			}
			else
			{
				//toimii ehkä kokeile
				if (x == y)
				{
					cout << "3: " << 4 * (x - 1) * (n - x + 1) + (y - x + 1) << endl;
				}
				else
				{
					cout << "4: " << 4 * (y - 1) * (n - y + 1) + 2 * (n - (2 * (y - 1))) - 1 + n - 2 * (y - 1) - 1 + (n - x - (y - 1)) << endl;
				}
			}
		}
		else
		{
			if (x > (n / 2))
			{
				//toimii ÁLÄ KOSKE
				cout << "5: " << 4 * x * (n - x) - 2 * n + 4 * x - 1 + (n - y - (n - x)) << endl;
			}
			else
			{
				//toimii ÁLÄ KOSKE
				cout << "6: " << 4 * (x - 1) * (n - x + 1) + (y - x + 1) << endl;
			}
		}
	}
	return 0;
}

Test 1

Group: 1

Verdict: WRONG ANSWER

Test 2

Group: 2

Verdict: WRONG ANSWER

Test 3

Group: 3

Verdict: WRONG ANSWER